/**
 * Copyright (c) 2024 watereyes
 * workflow is licensed under Mulan PubL v2.
 * You can use this software according to the terms and conditions of the Mulan
 * PubL v2.
 * You may obtain a copy of Mulan PubL v2 at:
 *          http://license.coscl.org.cn/MulanPubL-2.0
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PubL v2 for more details.
 */
package com.koron.beetl;

import org.beetl.core.Context;
import org.beetl.core.Function;
/**
 * beetl函数，把字符串首字母大写
 * @author swan
 *
 */
public class CeilUpper implements Function {
	@Override
	public Object call(Object[] arg, Context arg1) {
		if(arg[0]==null || arg[0].equals(""))
			return arg[0];
		StringBuilder sb = new StringBuilder(arg[0].toString());
		char c = sb.charAt(0);
		c=Character.toUpperCase(c);
		sb.setCharAt(0, c);
		return sb.toString();
	}
}
